Process of making heels



Oct. 9 1923.

C. HUNT PROCESS OF MAKING HEELS Filed Feb. 14, 1918 Patented Oct; 9, 1923.

Immense-93st w: mnmeimomor, :J Af III SSQN new JERSEY, QQBBQRIIIQN Applicgtion file fre rum 14,1913. SeiialNdfQlZfiQSif"' fo dl'lgc'vhomjt mag concern) Be it knoWnthat'L CHEsTER HUNT, a citizen ofthe-Unitedrstates, residing at Lynn, inthe county of Essex and-State of Messa' chusetts, hilve invented. certain Improvements in Processes of Making Heelsfof which the following 'clescript-ion,-"in connectionwith the. accompanying drawings, is a specification, like reference characters on the drawingsinclicatinglikeparts in the several'figure'si I r This invention relates to heels endvto methods of economical production thereof. In view of the advancing costof leather, lieelsere today largely i natle-to comprise base lifts:(usually two) oflea-ther to constitute the Wear-resisting portion, and body lifts (vgirying in number irom three to ten according to fthe height -of-the-heel);cut-from leg t-herlioerd .an'd Fasse-mbled With the base lifts into a he el ,pile, glued together; and

. also usually metallic fastened, ;-t-'hen pressed for a "f ewhours to-holcl the li'l ts in i-ntiinate contact while-the glue sets,'-then later com pressed, and finally edge "triniine clto profclnce evenedge surfaces." This 'llletllOd'flls slow and expensive "in-labor cost and only about 80% 'of the leather-board stock can be out into lifts, the remaining -being .sq repz h :i ,g Q1 13 'iu o to 2. .Wofiked over e'geiglik sho'cl'oly. Th .ip zesen intenti n h s t i ect the. mor expeditio s p id c iq v f h e s,

eliminating the Waste referredtoj and very large y reducing 11 t h bo q .m 'd the engthln timI uIi i c -i h s i pag s.- 1 jMy nethollflalso i results in a. .su-

' ine fio' heelypart culefly f m n a n nfis e l mat ial, su -m leather; nd a i e- .wtiyely thick bQdy zliftflor e'lenient jof .slich 1 1met ri le .lealiefi Qardstock fmmwhic th Wat been jlgafgel extracted out i hic st mellow fen ii h t inser ffa's- A sta ng ihrough with l ab lity l iac ilnemimit ng 'seidtlifts b m r ine pwpoj fa'stenings" having clinch fin and hol ing, 11 y cqitmetinnt .9 h

th ztaste n g t hold -conp essedziel non;

g I V "ginclf estening operationffffs- Itq other us wh re n .med h ig idmn a'g qus yth permeable body elemeht glevoicl gof excessive 1 base lift-meybe .preparedloyiinsertinglthere- I through a mafginel -row of I hea'le'd land* moisture; and also advantageouslya; sent 1 lift or a rand may-be-provided npon' the outer diace of which to clinch the nails;

lWhen properly prepared and asse nbledQAt-he heel element's afre forced3t;ogetiner-- 21ml sub jectecl t0- compre'ssion, a clinchingplate being used at the seatend of' the heelr qThe hotly; el entbm jilso m v sairl elenie nts,

no edge trinnningf of --t he *heelfl The cornpres sion forces the nailsfhome fand clinches athe points; causing. the l sa iicl iails to mai compression not only "closesthe jointsJhef tween the several elements and solidifies-gthe tain the severallel'e ments under compression.

'cliscloseclfentl *the-prOdrie-t resiiltiiig tliergepanying idraWi-ngs' I and will -then; point eo t the"'invention tlefinitely iI'r the-c 11 l fdmW-ingsshows in gTOup-re lation the evern elejinent's'cr fi ftsr- ':'Fig."2'is agvi'ew oft-he assembled and; om

'Fig. "'3' shows fth e' j conipressing tis ai'dete-il illustration-of h s time 10 E-- conipressionin reclnc g the tl icknessgof th ghe li: q iye m compression; r v 7 ig fi t this in en-' ttch'ed to a shoe ha e pj etn nth ethod b:tse-,1ift of suitable leather l ress'ible' I ct Shep producingsmootheclge face-tliereon which can ;be scoured and finished W-ith little or the lifts are preferably cut with a proper bevel.

' 1O responsive to heavy compression and mellow enough to permit driving nails through without liability of'cracking the block. The preparation of such blocks may or may not be carried on as a preliminary operation, preceding the date of their incorporation into the heel by a suflicient period to allow the block to acquire the desired degree of toughness while retaining suitable compressibility andpermeability. a

A seat rand 15 or a seat lift will be prepared of the size redeter1nined for the seat end of the heel. In the broadest aspect of the invention, neither the rand 15 nor the cover lift 5 are essential and it is also within the invention to omit the preliminary in- .sertion of the headed nail i into the lift 2 and to, drive said nails after the several 7 elements have been assembled and while pression. v

, tically together,

they are held under partial or complete com- The elements are now assembled in the order indicated in Fig. 3 within the molds of the compressor, the machine being of any suitable construction such for example as the compressor shown in :United States Letters PatentNo. 776,823 granted Dec. 6, 1904, C. L, Allen. The side molds are first closed to efiect precision of alinement of the elements and then the elements are pressed verpreferably simultaneously with lateral molding pressure which effects precise shaping of the edge faces of the heel, with rubbing pressure n the body element 10, so that the completed heel is adapted to be scouredand finished without edge trimming. As the elements are pressed together the nails are forced through'thepermeable element 10, which is subsequently to be .con-

densed and hardened by the compression.

' The nails used are of such length that, al-

- the elements are reduced in thickness by the though they may not extend fully through element .10 before pressure 'is applied, when well-known'power of said machine, the nails will be forced through element 10 and through the rand 15 and clinched or headed down upon the top face of the rand -as shown in Figs'gl and that the nails are clinched whenthe heel elements are under compression and reduced to minimum thickness and that the lifts 2 and 15- are relatively tougher than the ma-' terial of element lO so that they constitute --the equivalent f washers between which the compressed" element 10 is held by the headed ends of the marginal row of fasteners which constitute in effect headed rivets.

d. It will be "noted This produces a strong, light heel, at a minimum labor cost, with no waste of materials, no delays for the setting of glues or pastes, no long maintenance under pressure, a compressed heel fully completed for attachment to its shoe (Fig. 5) being produced in a single operation, This heel may be made particularly well adapted, by reason of the marginal anchorage of its parts together as securely asif they were riveted, for attachment to shoesby inside fastening, as shown, for example, in Fig; 5, and it is peci lly well adapted to the manufacturer for use with short soles because it can be molded to its final size, requiring no redue tion by the usual edge trimming operation. It therefore constitutes a reliable member with which to match the sole end 16 as to width. I have used with good rcsults a wide variety of compositions for the body element 10, including leatherboard stock mixed with Portland cement to influence hardness, fine cork to influence weight,- and selected coloring materials to matchtlie uppers of the shoes in which: theheelsiwere to be incorporated Having explained the nature of this in vention and described how the method may vbe successfully practised and the heel produced, I claim as new and desire to secure by Letters Patent of the'United States 1. That improvement in methods of .makingheels which consists in providing a neously compresslng said elements and. driving fastenings positioned to attach together said top andbottom elements and said body 7 portion. e

2. That improvement in methods of mak ing heels which. consists inplacing in a mold an element-which. is to form one of the exposed faces of a'heel having therein a marginally arran'gedro'w of fastenings extending into the space of the mold, placing in the moldan element to constitute an opposite face of the heel, pla'cing'a body ele ment of leatherboa-rd stock between said first-named elements, said last element being capable of substantial compression and of ready perforation by the nails, andfthen compressing said elements in the mold to cause the nails to perforate'the bodyelement and tobecome clenched in the opposite surface element.

3.- That improvement in methods of making heelswhich consists in providing a nail holding element, inserting nails in upstanding relation marginally thereof, providing a mass ofleatherboard pulp to form the heel and of the thickness of a plurality of I lifts, the mass being of firm consistency but 'penetrable by ffastenings Without liability ation.

body element of the heel, partially extracting the Water therefrom to render the mass homogeneous and firm but compressible and capable of perforation by the nails, positioning the said body element over said nail V holding elen ent, assembling a seat lift elementor rand with said body element, and

subjecting said elements to vertical and lateral compression tocause the nails to perforate the body element and become clenched in the seat lift element and the of crackin superimposing the mass on the fastenings, placing a seat lift onthe 1112155, and subjecting the mass to molding pr s' sure to cause the mass to be. compressed between thetoplift -and the seat lift and the fastenings to penetrate the mass and clench in the seat lift in 5. That improvement in methods of makawsingle molding operi sheet material, a body element of imperforate leatherboard stock from which the ing heels which consists in assembling in superimposed relation a base element of 35 moisture has been largely extracted but;

which is still mellow enough tof permit'the 1 i '7 passage of fasteningsthrough it Without ,7

liability of cracking, a-ndafseat lift or rand of'tough sheet materi'ahtheii" passing hold iligmea s through the bodyjportion'abo it H its margin, and then subjecting said 'eleiments to pressure sufficient to reduce the thickness of'the assemblageand simulta neously causing the holding meansto. be

pression. V

"headed to hold the assemblage under com 6. That improvement in methodsof'male.

ing heels which consists in providing top and bottom elementsto form respectively the tread and seat lifts of a heel, arranging between said elements an integral body ele; ment ofhomogeneous, semi-plastic material equal in thickness toapluralty of heel, lifts,

and then compressing said elements and While the elements are under compression" drivingfastenings 'positio-ned to attach together said top and bottom elements and said body compression.

In testimony whereof]: have signed m nameato this specification I CHESTER HUNT.

portion and hold; themunder 

